This year's auction of AWS-3 spectrum—mid-band stuff that's good for filling out metropolitan LTE networks—brought in $44.9 billion, mostly from three companies: AT&T, Dish, and Verizon.

We commissioned data visualization experts Mosaik Solutions to show us where the three players will be beefing up their networks.

AT&T spent more than $18 billion to obtain AWS-3 spectrum in almost all of the nation's major cities. AT&T is currently behind T-Mobile and Verizon in terms of establishing a fast 20MHz "wideband" LTE network in places like the crowded Northeast, and it has already said it'll use its new nearly nationwide, solid 10MHz-by-10MHz block of AWS-3 spectrum specifically to increase download speeds.